Nothing official from ABD. Sometimes folks do start a facebook page, but you'll have to search for that. I've started "Meets" Threads here for each itinerary (unfortunately, the list is no longer stickied, so you'll have to search for those, too.) You can post your dates there to see if anyone else here is on your same trip. Or you can create your own thread if you want & see if anyone else here has signed up for the same departure.Is there a way for fellow travelers to communicate before the ABD trip, such as a Facebook page? Thanks!